Question 1

Which of the following are used to define the percentage of cases equal to and below a certain point in a distribution of scores?

Accepted Answer

A) T scores 
B) Q points 
C) standard scores 
D) percentile points 
A) T scores 
B) Q points 
C) standard scores 
D) percentile points

Question 2

Which measure of central tendency is considered the most precise?

Accepted Answer

A) mean 
B) median 
C) mode 
D) average 
A) mean 
B) median 
C) mode 
D) average

Question 3

Your current exam mean is 93.2.If you receive an 87 on the next exam,this will have the effect of ______.

Accepted Answer

A) increasing your mean 
B) decreasing your mean 
C) having no effect on your mean 
D) cannot determine 
A) increasing your mean 
B) decreasing your mean 
C) having no effect on your mean 
D) cannot determine

Question 4

The interval level of measurement is based on some underlying continuum.

Accepted Answer

A) True 
 B)False

Question 5

The mean can also be described as the ______.

Accepted Answer

A) common mean 
B) arithmetic mean 
C) mode 
D) weighted mean 
A) common mean 
B) arithmetic mean 
C) mode 
D) weighted mean

Question 6

What is the mean value for the following scores: 10,35,40,60,55,25,50?

Accepted Answer

A) 45 
B) 44.17 
C) 40 
D) 39.29 
A) 45 
B) 44.17 
C) 40 
D) 39.29

Question 7

What is the formula for calculating the mean? What does each of the symbols represent?

Accepted Answer

ΣX / n,where Σ represents summ

Question 8

Your current exam mean is 97.2.If you receive a 99 on the next exam,what will happen to your mean?

Accepted Answer

A) It has no effect. 
B) It will decrease 
C) It will increase. 
D) It cannot be determined. 
A) It has no effect. 
B) It will decrease 
C) It will increase. 
D) It cannot be determined.

Question 9

The ordinal level of measurement stands for order.

Accepted Answer

A) True 
 B)False

Question 10

What is the symbol used to represent the mean?

Accepted Answer

A) N 
B) n 
C)    
D) X 
A) N 
B) n 
C)    
D) X

Question 11

If a distribution is "significantly distorted," what is this called?

Accepted Answer

A) variability 
B) outliers 
C) skew 
D) percentile 
A) variability 
B) outliers 
C) skew 
D) percentile

Question 12

Which of the following defines the median?

Accepted Answer

A) sum of all values in a group 
B) most frequently occurring value 
C) average variability in a set of scores 
D) midpoint in a set of scores 
A) sum of all values in a group 
B) most frequently occurring value 
C) average variability in a set of scores 
D) midpoint in a set of scores

Question 13

Use the mode as a measure of central tendency when the data are qualitative in nature.

Accepted Answer

A) True 
 B)False

Question 14

What is the median of the following set of scores: 1.3,4.7,2.3,3.3,3.0,2.9?

Accepted Answer

A) 2.95 
B) 3.05 
C) 2.90 
D) 3.00 
A) 2.95 
B) 3.05 
C) 2.90 
D) 3.00

Question 15

What is the meaning of the term skew regarding a set of data?

Accepted Answer

A) It is significantly distorted. 
B) It has been divided. 
C) It has been added. 
D) It is equalized. 
A) It is significantly distorted. 
B) It has been divided. 
C) It has been added. 
D) It is equalized.

Question 16

When is the ordinal level of measurement the correct level of measurement to use?

Accepted Answer

When we measure a variable tha

Question 17

The ratio level is the least precise level of measurement.

Accepted Answer

A) True 
 B)False

Question 18

A test score in the 97th percentile would be considered ______.

Accepted Answer

A) very high 
B) very low 
C) about average 
D) cannot be determined 
A) very high 
B) very low 
C) about average 
D) cannot be determined

Question 19

Which measure of central tendency is also known as the midpoint for a set of scores?

Accepted Answer

A) mode 
B) mean 
C) median 
D) sum 
A) mode 
B) mean 
C) median 
D) sum

Question 20

The mode will always consist of the ______.

Accepted Answer

A) number of cases in the category 
B) name of the category 
C) format of the category 
D) size of the category 
A) number of cases in the category 
B) name of the category 
C) format of the category 
D) size of the category

Which of the following are used to define the percentage of cases equal to and below a certain point in a distribution of scores?

Which measure of central tendency is considered the most precise?

Your current exam mean is 93.2.If you receive an 87 on the next exam,this will have the effect of ______.

The interval level of measurement is based on some underlying continuum.

The mean can also be described as the ______.

What is the mean value for the following scores: 10,35,40,60,55,25,50?

What is the formula for calculating the mean? What does each of the symbols represent?

Your current exam mean is 97.2.If you receive a 99 on the next exam,what will happen to your mean?

The ordinal level of measurement stands for order.

What is the symbol used to represent the mean?

If a distribution is "significantly distorted," what is this called?

Which of the following defines the median?

Use the mode as a measure of central tendency when the data are qualitative in nature.

What is the median of the following set of scores: 1.3,4.7,2.3,3.3,3.0,2.9?

What is the meaning of the term skew regarding a set of data?

When is the ordinal level of measurement the correct level of measurement to use?

The ratio level is the least precise level of measurement.

A test score in the 97th percentile would be considered ______.

Which measure of central tendency is also known as the midpoint for a set of scores?

The mode will always consist of the ______.

Statistics or Sadistics Its up to You

Understanding Variability: Vive La Différence

A Picture Really Is Worth a Thousand Words

Computing Correlation Coefficients: Ice Cream and Crime

Understanding Reliability and Validity: Just the Truth

Hypotheticals and You: Testing Your Questions

Probability and Why It Counts: Fun With a Bell-Shaped Curve

Significantly Significant: What It Means for You and Me

Only the Lonely: the One Sample Z-Test

Teafor Two: Tests Between the Means of Different Groups

Teafor Two Again: Tests Between the Means of Related Groups

Two Groups Too Many Try Analysis of Variance

Two Too Many Factors: Factorial Analysis of Variancea Brief Introduction

Testing Relationships Using the Correlation Coefficients: Cousins or Just Good Friends

Using Linear Regression: Predicting Wholl Win the Super Bowl

Chi-Square and Some Other Nonparametric Tests: What to Do When Youre Not Normal

Some Other Importantstatistical Procedures You Should Know About

An Introduction to Data Mining

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Exam 2: Means to an End: Computing and Understanding Averages

Which of the following are used to define the percentage of cases equal to and below a certain point in a distribution of scores?

Which measure of central tendency is considered the most precise?

Your current exam mean is 93.2.If you receive an 87 on the next exam,this will have the effect of ______.

The interval level of measurement is based on some underlying continuum.

The mean can also be described as the ______.

What is the mean value for the following scores: 10,35,40,60,55,25,50?

What is the formula for calculating the mean? What does each of the symbols represent?

Your current exam mean is 97.2.If you receive a 99 on the next exam,what will happen to your mean?

The ordinal level of measurement stands for order.

What is the symbol used to represent the mean?

If a distribution is "significantly distorted," what is this called?

Which of the following defines the median?

Use the mode as a measure of central tendency when the data are qualitative in nature.

What is the median of the following set of scores: 1.3,4.7,2.3,3.3,3.0,2.9?

What is the meaning of the term skew regarding a set of data?

When is the ordinal level of measurement the correct level of measurement to use?

The ratio level is the least precise level of measurement.

A test score in the 97th percentile would be considered ______.

Which measure of central tendency is also known as the midpoint for a set of scores?

The mode will always consist of the ______.

Statistics or Sadistics Its up to You

Understanding Variability: Vive La Différence

A Picture Really Is Worth a Thousand Words

Computing Correlation Coefficients: Ice Cream and Crime

Understanding Reliability and Validity: Just the Truth

Hypotheticals and You: Testing Your Questions

Probability and Why It Counts: Fun With a Bell-Shaped Curve

Significantly Significant: What It Means for You and Me

Only the Lonely: the One Sample Z-Test

Teafor Two: Tests Between the Means of Different Groups

Teafor Two Again: Tests Between the Means of Related Groups

Two Groups Too Many Try Analysis of Variance

Two Too Many Factors: Factorial Analysis of Variancea Brief Introduction

Testing Relationships Using the Correlation Coefficients: Cousins or Just Good Friends

Using Linear Regression: Predicting Wholl Win the Super Bowl

Chi-Square and Some Other Nonparametric Tests: What to Do When Youre Not Normal

Some Other Importantstatistical Procedures You Should Know About

An Introduction to Data Mining

Filters